The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2012
Filed:
Feb. 18, 2011
Applicant:
Gary Dilling, Gardiner, MA (US);
Inventor:
Gary Dilling, Gardiner, MA (US);
Assignee:
Phillips Screw Company, Burlington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B 15/00 (2006.01); B25B 13/48 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fastener system is constructed wherein the installation and removal drive surfaces intersect an enlarged core diameter in a transitional surface that extends between the installation and removal surfaces of adjacent wings. The transitional surface has a concave form that conforms to the core diameter. The projections of the driver in the system are formed in a blunt shape.